Belt pulley driven inclined trephine

A technology of pulley and trephination, which is applied in the direction of boring/drilling, drilling/drilling equipment, parts of boring machine/drilling machine, etc. It can solve the problems of difficult processing and time-consuming, and achieve a compact structure and simple process. Effect

Inactive Publication Date: 2007-08-22
SICHUAN DONGFENG ELECTRIC MACHINARY WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an oblique vertical trephine, which solves the problems of difficult processing and time-consuming when processing screw holes and positioning holes on the end surface of the shaft hole of the outer water distribution ring

Method used

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  • Belt pulley driven inclined trephine
  • Belt pulley driven inclined trephine

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Embodiment Construction

[0010] Further describe the technical scheme of the present invention below in conjunction with accompanying drawing: pulley transmission type oblique vertical trephine, it comprises base plate 1, base 2, swivel seat 3, bit case 4, belt pulley 5, motor 6, spacer 7, wherein Motor 6 is installed among the bit box 4, and belt pulley 5 is placed on the bit box 4, is suspended state. When drilling, put the base 2 that matches the shaft hole of the outer water distribution ring into the shaft hole of the outer water distribution ring, and fix the base 2, the bottom plate 1 and the outer ring with the bolt top copper gasket 7, which can be rotated by rotating the seat 3 to realize the position indexing of the hole, and adjust the diameter position of the hole by moving the drill box 4. The drill bit should be controlled within a certain length range due to the limitation of its stroke. The drill bit speed is the slow speed in the reasonable speed determined through extensive investig...

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PUM

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Abstract

The belt pulley driven inclined trephine includes a bottom plate, a pedestal, a swivel base, a bit box, a belt wheel, a motor and a gasket. The motor is installed inside the bit box, and the belt pulley is set bit on the box and in a suspension state. The present invention has compact structure, simple technological process, facilitated machining and short machining period.

Description

technical field [0001] The invention relates to an inclined vertical trephine, in particular to a pulley-driven inclined vertical trephine. Background technique [0002] The inner and outer water distribution rings of bulb type units are large workpieces in hydroelectric power generation equipment. Because the guide vane shaft holes of the inner and outer water distribution rings form a certain angle with the installation or processing base surface, the screw holes and positioning holes distributed on the end surface of the shaft hole of the outer water distribution ring have a certain degree of processing under the condition of no large-scale special equipment. Difficulties. In the past, the screw holes and positioning holes on the end surface of the shaft hole on the outer water distribution ring were processed by using a universal drill to process the pilot holes. Then lift one end of the workpiece with the hoisting crane, so that the axis of the shaft hole on the outer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B41/00B23B41/12B23B47/16B23Q3/00B23Q16/02
Inventor 阎玉辉李明
Owner SICHUAN DONGFENG ELECTRIC MACHINARY WORKS CO LTD
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